From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id DC146211616B3 for ; Tue, 2 Oct 2018 07:45:48 -0700 (PDT) Date: Tue, 2 Oct 2018 07:45:47 -0700 From: Christoph Hellwig Subject: Re: Problems with VM_MIXEDMAP removal from /proc//smaps Message-ID: <20181002144547.GA26735@infradead.org> References: <20181002100531.GC4135@quack2.suse.cz> <20181002121039.GA3274@linux-x5ow.site> <20181002142010.GB4963@linux-x5ow.site> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181002142010.GB4963@linux-x5ow.site> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: Johannes Thumshirn Cc: Jan Kara , linux-nvdimm@lists.01.org, mhocko@suse.cz, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org List-ID: On Tue, Oct 02, 2018 at 04:20:10PM +0200, Johannes Thumshirn wrote: > Provide a F_GETDAX fcntl(2) command so an application can query > whether it can make use of DAX or not. How does an application "make use of DAX"? What actual user visible semantics are associated with a file that has this flag set? _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 2 Oct 2018 07:45:47 -0700 From: Christoph Hellwig To: Johannes Thumshirn Cc: Jan Kara , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, mhocko@suse.cz, Dan Williams Subject: Re: Problems with VM_MIXEDMAP removal from /proc//smaps Message-ID: <20181002144547.GA26735@infradead.org> References: <20181002100531.GC4135@quack2.suse.cz> <20181002121039.GA3274@linux-x5ow.site> <20181002142010.GB4963@linux-x5ow.site> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181002142010.GB4963@linux-x5ow.site> Sender: owner-linux-mm@kvack.org List-ID: On Tue, Oct 02, 2018 at 04:20:10PM +0200, Johannes Thumshirn wrote: > Provide a F_GETDAX fcntl(2) command so an application can query > whether it can make use of DAX or not. How does an application "make use of DAX"? What actual user visible semantics are associated with a file that has this flag set?